Yuandi Shi

Title: Innovations by Yuandi Shi in Image Encryption

Introduction

Yuandi Shi, a distinguished inventor based in Dalian, China, has made significant contributions to the field of image encryption through his innovative methods. With two patents to his name, Shi has focused on developing techniques that enhance the security and quality of image encryption, addressing critical needs in the digital information age.

Latest Patents

Shi’s inventive work includes two notable patents. The first patent, titled "Method for encrypting visually secure image," introduces a sophisticated method that utilizes adaptive block compressed sensing and non-negative matrix decomposition. This method begins with applying the Tetrolet transform to a plain image, followed by optimizing the sparsity degree in the sparsity matrix. The process involves scrambling the matrix to equalize sparsity across the image blocks. Subsequently, Shi calculates the sampling number for each block region, constructs an optimized measurement matrix, and compresses the image using this matrix. The final steps of the method include scrambling the compressed image and embedding image information into a carrier image, resulting in a visually secure ciphertext. The decryption process operates inversely to encryption, ensuring data integrity and security.

Shi’s second patent, "Image encryption method based on multi-scale compressed sensing and Markov model," addresses the distinction in information carried by low-frequency and high-frequency coefficients of images. By setting different sampling rates for these coefficients, this method significantly enhances the reconstruction quality of decrypted images. The results showcase better visual effects and more complete original image information compared to existing schemes.

Career Highlights

Throughout his career, Yuandi Shi has worked at reputable institutions, including Dalian University of Technology and Dalian University. His academic and research endeavors in these organizations have facilitated his innovative contributions to the field of image encryption.

Collaborations

Shi has collaborated with notable colleagues, including Qiang Zhang and Bin Wang. Their partnership has likely fostered a productive environment for research and development, further advancing the field of image security through innovation.

Conclusion

In summary, Yuandi Shi stands out as a notable inventor in image encryption, with groundbreaking patents that advance both security and image quality. His work embodies a commitment to innovation, making significant strides in the realm of digital information processing. As the demand for secure image transmission grows, Shi’s inventions pave the way for enhanced methods for safeguarding valuable visual data.